Managing Virtual Storage

managing virtual storage is an essential element of managing any IT infrastructure. In contrast to physical hardware, where it is easy to swap out devices or replace them with more powerful ones, this kind of storage is more complicated and requires the right tools for management to make the most of it.

Virtualization is the best approach to handle the complexity. It allows you to pool resources and create a storage solution that is able to handle more data. Virtualization can be used on a variety of platforms such as network appliances that offer centralized storage to your applications, and virtualized storage software which uses the hardware underpinning it to provide the same storage pool to your system.

A network appliance, for example, can use physical Fibre Channel SAN (FC) or iSCSI SAN in order to present an array of storage that appears as a single logical disk to servers or hosts. It receives input and output (I/O) requests and then sends the requests to a different physical location within the storage pool without the server or host being aware of what is happening behind the background. The mapping granularity dictates how quickly the meta-data can be updated, how much space is required for a migration and how quickly the previous physical location can be marked as free.

Virtualized storage solutions also provide high availability by mirroring the data between multiple servers. This ensures that in the event that one of the server nodes fails, you will not lose access to critical business data since the data is automatically transferred to healthy servers in the cluster.

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